Kermit has been fighting a new cat in the neighbourhood. I heard and then saw them on Saturday, and he'd already been to the vet for treatment on a runny eye. This evening I took him back for a check-up and I was very impressed with what the vet did to check his tear duct. Pink liquid went into his eye and turned his nose green when it ran through! Unfortunately it soon faded or it would have made a great blip! Cost me £15 for a 5 minute consultation, though.